ICD-10 Code H50.01 – Monocular Esotropia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.01 – Monocular esotropia
What it is
Monocular esotropia is an inward turning of one eye. Use this code when the deviation is limited to a single eye and is documented as esotropia.
Clinical signs
Common findings include one eye turning inward, poor ocular alignment, and possible diplopia or reduced binocular vision. Clinical features vary; refer to documentation.
When to use this code
Use H50.01 when the provider documents monocular esotropia, alternating only if specifically stated otherwise. Apply it for outpatient, inpatient, or specialty eye evaluations when the diagnosis is confirmed or clearly assessed. Check documentation if the note only says strabismus or eye misalignment.
Do not use for
Do not use this code for unspecified strabismus, exotropia, or other ocular deviations. If the record does not identify the deviation as monocular esotropia, check documentation.
Coding tip
Confirm laterality and the exact strabismus type in the assessment before assigning H50.01.